/* GLOBAL STYLES
-------------------------------------------------- */
/* Padding below the footer and lighter body text */
a:focus {
  outline:none;
  -moz-outline:none;
}

html {
  font-size: 16px;
}

body {
  color: #5a5a5a;
  font-family: 'Hiragino Sans GB','微软雅黑','黑体',Arial,sans-serif;
}

@keyframes round {
  0% {transform: rotate(0deg);}
  100% {transform: rotate(360deg);}
}

@-webkit-keyframes round {
  0% {-webkit-transform: rotate(0deg);}
  100% {-webkit-transform: rotate(360deg);}
}

#loading {
  width: 100%;
  height: 100%;
  position: fixed;
  top: 0;
  left: 0;
  z-index: 99999;
  background-color: #2c3e50;
}
#loading .round {
  height: 100px;
  width: 100px;
  margin: -50px 0 0 -50px;
  position: absolute;
  top: 50%;
  left: 50%;
  border: 1px solid #fff;
  border-radius: 50%;
  animation: round 2s infinite;
  -webkit-animation: round 2s infinite;
}
#loading .round .dot {
  height: 10px;
  width: 10px;
  position: absolute;
  top: 0px;
  left: 20px;
  background-color: #fff;
  border-radius: 50%;
}
#loading .text {
  width: 60px;
  height: 30px;
  margin-top: -15px;
  margin-left: -30px;
  position: absolute;
  top: 50%;
  left: 50%;
  color: #fff;
  font-size: 16px;
  font-family: calibri;
  text-align: center;
  line-height: 30px;
}

.navbar {
  transition: all .5s;
  -moz-transition: all .5s;
  -webkit-transition: all .5s;
  -o-transition: all .5s;
}
.navbar-brand {
  color: #cbcbcb;
  transition: all .5s;
  -moz-transition: all .5s;
  -webkit-transition: all .5s;
  -o-transition: all .5s;
}
.navbar-brand:hover,
.navbar-brand:focus {
  color: #fff;
}
.nav-item a {
  color: #cbcbcb;
  transition: all .5s;
  -moz-transition: all .5s;
  -webkit-transition: all .5s;
  -o-transition: all .5s;
}
.nav-item a:hover,
.nav-item a:active {
  color: #fff;
  background-color: rgba(255,255,255,.3);
}

.banner {
  margin-bottom: 4rem;
  background: #2c3e50 url('../images/bg_keyboard.jpg');
  background-position: center;
  position: relative;
}
.banner .bg-mask {
  background-color: rgba(0,0,0,.4);
}
.banner .container {
  padding-top: 80px;
  padding-bottom: 2.5rem;;
}
.banner .linuxer-img {
  width: 10rem;
  margin: 0 auto;
  margin-bottom: 1.5rem;
}
.banner .linuxer-img img {
  width: 100%;
}
.banner .desc {
  color: #fff;
  text-align: center;
}
.banner .btn-join {
  background-color: #316ceb;
  border: none;
  width: 180px;
  margin-top: 20px;
  transition: all .5s;
  -moz-transition: all .5s;
  -webkit-transition: all .5s;
  -o-transition: all .5s;
}
.banner .btn-join:hover{
  background-color: #025ed9;
  border:none;
}

.feature .feat-item {
  margin-bottom: 1.5rem;
  text-align: center;
}
.feature h2 {
  font-weight: normal;
}
.feature .col-lg-4 p {
  margin-right: .75rem;
  margin-left: .75rem;
}
.feat-item h4 {
  margin-top: .5rem;
  margin-bottom: .5rem;
  font-size: 1.2rem;
  font-weight: 600;
}
.feat-item a {
  color: #203561;
  
}
.feat-item a:hover,
.feat-item a:active {
  color:#316ceb;
  transition: all .5s;
  -moz-transition: all .5s;
  -webkit-transition: all .5s;
  -o-transition: all .5s;
}
.feat-item .icon-blog,
.feat-item .icon-email,
.feat-item .icon-resource,
.feat-item .icon-lecture{  
  font-size: 80px;
}
.feat-item .view-more {
  text-decoration: none;
}

.featurette-divider {
  margin: 4rem 0; 
}

.featurette-heading {
  margin: 0 0 2rem 0;
  font-size: 2rem;
  font-weight: 600;
  line-height: 1;
  letter-spacing: -.05rem;
}
.featurette .lead{
  text-indent: 2em;
  font-size: 1.0rem;
}
.featurette .lead a {
  color: #914E00;
}
.featurette-img {
  width: 15rem;
  height: 15rem;
  margin: auto auto;
}
.featurette-img img {
  width: 100%;
}

footer {
  margin-top: 4rem;
  background-color: #2c3e50;
}
footer .link-address {
  margin-top: 30px;
  color: #a6a6a6;
  font-size: 15px;
}

footer .link-address ul {
  padding: 0;
  list-style: none;
  color:#BFBFBF;
}
footer .link-address a {
  text-decoration: none;
  color: #B8824D;
}
footer .link-address a:hover,
footer .link-address a:active{
  text-decoration: none;
  color: #914E00;
}
footer .link-address .qr {
  width: 90px;
  height: 90px;
}
footer .copy-right-content {
  padding-bottom: 25px;
  margin-top: 50px;
  color: #B8824D;
  text-align: center;
}

#back-to-top {
  text-align: center;
  display: none;
  position: fixed;
  right: 20px;
  bottom:20px;
  background-color: #2c3e50;
  border-radius: 10px;
}
#back-to-top a {
  width: 40px;
  height: 40px;
  display: block;
  color: #cbcbcb;
  line-height: 40px;
  text-decoration: none;
}
#back-to-top a:hover,
#back-to-top a:active {
 color: #fff;
}

.sfd-live {
  width: 600px;
  margin-left: -300px;
  margin-top: -240px;
  display: none;
  position: fixed;
  left: 50%;
  top: 50%;
  z-index: 10000;
  background-color: #fff;
  box-shadow: 0px 1px 2px #888888;
}
.sfd-live video {
  margin: 0;
  background-color: #000;
}
.sfd-live .btn-close {
  width: 40px;
  height: 40px;
  display: none;
  position: absolute;
  right: 0;
  top: 0;
  border-radius: 50%;
  color: #fff;
  font-size: 25px;
  text-align: center;
  line-height: 40px;
}
.sfd-live:hover .btn-close {
  display: block;
}
.sfd-live .live-info {
  padding: 20px;
  text-align: center;
}
